title: Can assessors in a psychotherapy trial be successfully blinded? Analysis of a randomized controlled trial on psychotherapy for refractory insomnia in residual depression.
authors.affiliation: Department of Clinical Epidemiology, Translational Medical Center, National Center of Neurology and Psychiatry, Tokyo, Japan.
authors.forename: Norio
authors.initials: N
authors.lastname: Watanabe
authors.forename: Toshi A
authors.initials: TA
authors.lastname: Furukawa
authors.forename: Shinji
authors.initials: S
authors.lastname: Shimodera
authors.forename: Fujika
authors.initials: F
authors.lastname: Katsuki
authors.forename: Hirokazu
authors.initials: H
authors.lastname: Fujita
authors.forename: Megumi
authors.initials: M
authors.lastname: Sasaki
authors.forename: Yousuke
authors.initials: Y
authors.lastname: Suga
authors.forename: Kyoko
authors.initials: K
authors.lastname: Kakeda
authors.forename: Michael L
authors.initials: ML
authors.lastname: Perlis
mesh_terms: D006801:Humans; D011643:Publishing / Q000706:statistics & numerical data*; D016032:Randomized Controlled Trials as Topic / Q000706:statistics & numerical data*; D058028:Research Report / Q000592:standards*